IN74ACT652 datasheet(6/8 Pages) INTEGRAL

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IN74ACT652

FUNCTION TABLE

Dir.

OE CAB CBA SAB SBA

FUNCTION

INPUTS

INPUTS Both the A bus and the B bus are inputs.

The output functions of the A and B bus

are disabled.

INPUTS

INPUTS Both the A and B bus are used for inputs

to the internal flip-flops. Data at the bus

will be stored on low to high transition of

the clock inputs.

OUTPUTS INPUTS The A bus are outputs and the B bus are

inputs.

The data at the B bus are displayed at the

A bus.

The data at the B bus are displayed at the

A bus. The data of the B bus are stored to

the internal flip-flops on low to high

transition of the clock pulse.

The data stored to the internal flip-flops,

are displayed at the A bus.

The data at the B bus are stored to the

internal flip-flops on low to high transition

of the clock pulse. The states of the

internal flip-flops output directly to the A

bus.

INPUTS OUTPUTS The A bus are inputs and the B bus are

outputs.

The data at the A bus are displayed at the

B bus.

The data at the B bus are displayed at the

A bus. The data of the B bus are stored to

the internal flip-flops on low to high

transition of the clock pulse.

The data stored to the internal flip-flops

are displayed at the B bus.

The data at the A bus are stored to the

internal flip-flops on low to high transition

of the clock pulse. The states of the

internal flip-flops output directly to the B

bus.

OUTPUTS OUTPUTS Both the A bus and the B bus are outputs

The data stored to the internal flip-flops

are displayed at the A and B bus

respectively.

The output at the A bus are displayed at

the B bus, the output at the B bus are

displayed at the A bus respec.

X : DON’T CARE

Z : HIGH IMPEDANCE

Qn : THE DATA STORED TO THE INTERNAL FLIP-FLOPS BY MOST RECENT LOW TO HIGH

TRANSITION OF THE CLOCK INPUTS

* : THE DATA AT THE A AND B BUS WILL BE STORED TO THE INTERNAL FLIP-FLOPS ON EVERY

LOW TO TRANSITION OF THE CLOCK INPUTS

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